/*
 * (c) Copyright 2006, 2007, 2008 Hewlett-Packard Development Company, LP
 * All rights reserved.
 * [See end of file]
 */

package arq.examples.propertyfunction;

import com.hp.hpl.jena.graph.Node;
import com.hp.hpl.jena.sparql.pfunction.PFuncAssignToObject;

/**
 * Example property function that uppercases the lexical form of a literal. The
 * subject must be bound, the object not bound. {@link localname} shows a
 * property function that handles more cases of subject or object bing bound or
 * unbound.
 * 
 * <pre>
 *     PREFIX ext: &lt;java:arq.examples.propertyfunction.&gt;
 * </pre>   
 *  <pre>
 *     { ?string ext:uppercase ?uppercase }
 * </pre>
 *  <pre>
 *     { &quot;lower case&quot; ext:uppercase ?uppercase }
 * </pre>
 * 
 * Else fails to match.
 */

public class uppercase extends PFuncAssignToObject {
	public Node calc(Node node) {
		if (!node.isLiteral())
			return null;
		String str = node.getLiteralLexicalForm().toUpperCase();
		return Node.createLiteral(str);
	}
}

/*
 * (c) Copyright 2006, 2007, 2008 Hewlett-Packard Development Company, LP All
 * rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer. 2. Redistributions in
 * binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other
 * materials provided with the distribution. 3. The name of the author may not
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */